Suction pressure transmitters designed for precise negative pressure measurement relative to ambient. Ideal for industrial vacuum control and monitoring applications.
Suction pressure transmitters are sensing devices designed to measure and report pressure levels below the ambient atmospheric pressure. These devices utilize a sensing diaphragm referenced to the surrounding atmosphere, enabling them to accurately quantify the degree of vacuum or negative pressure within a system. Essential for a wide array of industrial, research, and medical applications, from monitoring pump inlets and controlling vacuum furnaces to ensuring the efficacy of medical suction apparatus, these transmitters provide critical data for process control, safety, and operational efficiency by converting the measured suction into a transmittable electrical signal.
ATEX approved negative 10 mbar vacuum pressure transmitter - ATEX certified intrinsically safe pressure transmitter for measuring from 0 to minus 10 millibar gauge vacuum pressure.
Dredging vacuum pressure Transmitter - Vacuum pressure sensor that will measure the vacuum pressure of a dredger suction pipe pump inlet.
IMP Low Cost Pressure Sensor
DMP343 Low Range Pneumatic Pressure Sensor
DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor
DMK457 Marine Approved Pressure Transmitter
- -10…30 kPa g compound range inert gas pressure transmitter for ship IG system - An intrinsically safe, marine approved compound range pressure transmitter for ship cargo tank IG system use to measure pressure of inert gas over a range of -10 to 30 kPa g from the G1/2 male process connection, and sending the corresponding 4-20mA signal through the DIN plug electrical connection.
- Landfill biogas extraction well depressure pressure transmitter - Ensure efficient biogas extraction and safe operation in hazardous landfill environments with the DMP331 pressure transmitter. This intrinsically safe device accurately measures depressure in extraction wells, contributing to optimized gas collection and environmental protection.
DMP331i High Accuracy Pressure Transmitter
DMP331P Hygienic Flush Pressure Transmitter
DMK331P Flush Diaphragm Pressure Sensor
DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
IMPLR Low Range All Stainless Steel OEM Pressure Sensor
DS201 Combined Pressure Sensor, Display and Switch
DS200 Combined Pressure Switch, Gauge and Sensor
DMP457 Marine Approved Pressure Transmitter
- Minus 25 mb vacuum intrinsically safe 4-20mA pressure sensor
- -15psig 0-10V out negative pressure transducer and display for air extraction use
- 100 mmWG negative gauge range vacuum sensor
- Vacuum suction sensor & wall mount digital readout with switched contacts
- Negative 250mbarg range 4-20mA out suction range pressure sensor
- 0 to -300 mmH2O vacuum transmitter
- Minus 15 mbar (6 inH2O) range suction pressure transmitter
- 0 to -200 mbar negative gauge suction range 4-20mA output stainless steel pressure sensor
- -5 to +5 psi g low compound range 4 to 20 mA output OEM pressure sensor
- Minus 100 pascal suction pressure transmitter
- 80 kPa suction pressure transducer with 4-20ma output
- Under and Over pressure monitoring -10…+200 mb pressure transmitter
Find out more about Suction Pressure Transmitters to determine which product options and capabilities will best meet your application requirements.
Suction pressure transmitters are instruments engineered to accurately quantify and relay measurements of pressure below the prevailing atmospheric level. These devices are crucial in applications where maintaining, monitoring, or controlling a specific degree of vacuum is essential. The core of their operation involves a sensing diaphragm which is exposed to the process medium on one side, experiencing the suction or negative pressure. The opposite side of this diaphragm, known as the reference side, is typically vented to the ambient atmospheric pressure. This differential creates a deflection or change in the sensing element, which is then precisely converted into a standardized electrical signal suitable for transmission to control systems, data loggers, or display units.
The design considerations for suction pressure transmitters often focus on the sensitivity and stability of the sensing element at these sub-atmospheric pressures. The materials used for the diaphragm and the wetted parts are selected based on compatibility with the medium being measured, which could range from air and inert gases to more aggressive vapors or liquids in industrial processes. The integrity of the seal around the sensing diaphragm is paramount to ensure that the reference to ambient pressure is accurate and that no leaks compromise the negative pressure measurement. Unlike gauge pressure transmitters that measure positive pressure relative to ambient, suction pressure transmitters are exclusively calibrated and scaled for ranges that fall below this ambient baseline, often expressed in units such as millibar (mbar), inches of mercury (inHg), or Pascals (Pa) below atmospheric.
Engineers and technicians deploying suction pressure transmitters must consider the required measurement range carefully, as an inappropriately scaled device can lead to inaccuracies or an inability to detect critical low-pressure setpoints. The dynamic response of the transmitter is also important in applications where suction levels change rapidly, such as in automated pick-and-place systems or vacuum forming machinery. Furthermore, the environmental conditions of the installation, including temperature fluctuations and potential vibrations, can influence the performance and longevity of these transmitters, necessitating careful selection of housing materials and mounting techniques. For instance, monitoring the inlet pressure of pumps to detect potential cavitation conditions, controlling vacuum levels in degassing processes, or ensuring efficient operation of medical suction equipment are all common applications where the precise measurement of negative pressure is vital. These transmitters are also integral in HVAC systems for monitoring filter conditions or maintaining negative pressure in controlled environments like cleanrooms or isolation wards.